1. Standby time: about 360 days
2. Transmission distance: 10-15 meters
3. Bluetooth version: 5.1 Bluetooth chip
4. Charging bay cycle: charge 3~4 times, single ear loop playback for 30 hours
5. How to use: earplug type
6. Whether single or double ear: bilateral stereo
7. Battery capacity: 400mAh
8. Cut song, pause playback, answer/hang up, voice assistant, etc...Various functions can be easily completed by just tapping on the touch area of a mobile phone